Hi, it's Solo's Ds here Coffeeformeplease
These are some things you need to understand before creating a minecraft server.
Exerts from the MinecraftWiki:
"Warning
Before following these instructions please note that running server software on your computer without a clear understanding of what you are doing may seriously harm your system and lead to vulnerabilities. Do not open ports in your router without knowing exactly what you are doing."
"Warning
Since you're about to run your own server, you should be aware of the possible dangers. Although we can not prevent people from running their server and putting themselves at risk, we may at least appeal that you don't do it when having no idea what you actually do. Running by the instructions below should not put you at any risk, but since this is a wiki which everybody is allowed to edit, and we don't know about your system configuration, we cannot guarantee you'll be out of danger. In order to run your server and stay out of trouble, we strongly recommend you should at least know about the following:
Networking in general (IP, DHCP, ports etc.)
Your system configuration
Your network configuration
Your router configuration (if you want other people to connect over Internet)
How to use and configure your personal firewall (shutting it down is NOT an option!)"
In essence what you would need to do with regards to creating the server is download all of the necessary software, i shall link these downloads here:
minecraft.net/download
The sub-heading 'multiplayer server' is where you will be able to download the program for this.
I won't run into specifics at all the different booster software to download (even though it's free) I.E. Hamachi which helps to maintain the servers connection and keep it from being laggy (slow).
The main thing you should understand is that hosting a multiplayer is not without risk; if your Ds gives the IP to his friends and his friends give it to his friends, many people could join the server and destroy all the 'hard' work done by your Ds and his friends.
Unless you or your Ds do something that you don't quite understand you should be fine, but if you don't understand then i would leave it and not bother having the server.
However after downloading the 'multiplayer server' download from the link above, this turorial on youtube may be able to help.
The only other thing is paid hosting from companies like 'fragnet.net' but i wouldn't because £10 a month is quite a lot for such a simple game.
I would suggest not even bothering as it's a lot of hassle, but if you wish to do so that youtube tutorial is quite informative.
any more questions just ask :)